n = int(input())
xy = [list(map(int,input().split())) for i in range(n)]

ans = float("inf")

for x in range(310):
    for y in range(310):
        tmp = 0
        for i in range(n):
            tmp += abs(x-xy[i][0]) + abs(y-xy[i][1])
        ans = min(ans, tmp)

print(ans)